Expansion Vessels & Ancillaries

Expansion vessels, also known as expansion tanks, can be found in most domestic pressurised heating systems. If you have a combi boiler, you will have an expansion vessel. This vessel contains air and water from the central heating system, and its purpose is to maintain the right level of pressure in the system.

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8L CORE Heating Expansion Vessel

CHV8L

CORE Heating Expansion Vessel 8 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Stock Availability: In stock

12L CORE Heating Expansion Vessel

CHV12L

CORE Heating Expansion Vessel 12 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Stock Availability: In stock

18L CORE Heating Expansion Vessel

CHV18L

CORE Heating Expansion Vessel 18 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Stock Availability: In stock

25L CORE Heating Expansion Vessel

CHV25L

CORE Heating Expansion Vessel 25 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C.

Stock Availability: In stock

35L CORE Heating Expansion Vessel

CHV35L

CORE Heating Expansion Vessel 35 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

50L CORE Heating Expansion Vessel

CHV50L

CORE Heating Expansion Vessel 50 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

80L CORE Heating Expansion Vessel

CHV80L

CORE Heating Expansion Vessel 80 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

100L CORE Heating Expansion Vessel

CHV100L

CORE Heating Expansion Vessel 100 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

150L CORE Heating Expansion Vessel

CHV150L

CORE Heating Expansion Vessel 150 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

200L CORE Heating Expansion Vessel

CHV200L

CORE Heating Expansion Vessel 200 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

300L CORE Heating Expansion Vessel

CHV300L

CORE Heating Expansion Vessel 300 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

400L CORE Heating Expansion Vessel

CHV400L

CORE Heating Expansion Vessel 400 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

500L CORE Heating Expansion Vessel

CHV500L

CORE Heating Expansion Vessel 500 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

600L CORE Heating Expansion Vessel

CHV600L

CORE Heating Expansion Vessel 600 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: Out of stock

800L CORE Heating Expansion Vessel

CHV800L

CORE Heating Expansion Vessel 800 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: Out of stock

1000L CORE Heating Expansion Vessel

CHV1000L

CORE Heating Expansion Vessel 1000 Litre. 6 bar Maximum Working Pressure. Working Temperature -10 - 70°C. (with legs)

Stock Availability: In stock

8L CORE Potable Expansion Vessel

CPV8L

CORE Potable Expansion Vessel 8 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

12L CORE Potable Expansion Vessel

CPV12L

CORE Potable Expansion Vessel 12 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

18L CORE Potable Expansion Vessel

CPV18L

CORE Potable Expansion Vessel 18 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

24L CORE Potable Expansion Vessel

CPV24L

CORE Potable Expansion Vessel 24 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

35L CORE Potable Expansion Vessel

CPV35L

CORE Potable Expansion Vessel 35 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

50L CORE Potable Expansion Vessel

CPV50L

CORE Potable Expansion Vessel 50 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

80L CORE Potable Expansion Vessel

CPV80L

CORE Potable Expansion Vessel 80 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

100L CORE Potable Expansion Vessel

CPV100L

CORE Potable Expansion Vessel 100 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

150L CORE Potable Expansion Vessel

CPV150L

CORE Potable Expansion Vessel 150 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: Out of stock

200L CORE Potable Expansion Vessel

CPV200L

CORE Potable Expansion Vessel 200 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: In stock

300L CORE Potable Expansion Vessel

CPV300L

CORE Potable Expansion Vessel 300 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: Out of stock

500L CORE Potable Expansion Vessel

CPV500L

CORE Potable Expansion Vessel 500 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: Out of stock

750L CORE Potable Expansion Vessel

CPV750L

CORE Potable Expansion Vessel 750 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: Out of stock

1000L CORE Potable Expansion Vessel

CPV1000L

CORE Potable Expansion Vessel 1000 Litre. 10 bar Maximum Working Pressure. Working Temperature -10 - 100 °C. WRAS approved.

Stock Availability: Out of stock

Advantay ER-18 Heating Vessel (Red)

AD0093000018

Advantay ER series 18 Litre Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 8 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 410mm, Wall mounting (with suitable bracket) - Red

Stock Availability: Out of stock

Advantay ER-24 CE Heating Vessel (Red)

AD0093000024

Advantay ER series 24 Litre Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 8 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 355mm, Wall mounting (with suitable bracket) - Red

Stock Availability: Out of stock

Advantay ERCE 35 Heating Vessel (Integral Bracket)

AD0093000035

Advantay ER series 35 Litre Heating Expansion Vessel with Integrated Bracket. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 390mm – Red

Stock Availability: Out of stock

Advantay ERCE 50 Heating Vessel (Integral Bracket)

AD0093000050

Advantay ER series 50 Litre Heating Expansion Vessel with Integrated Bracket. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 500mm – Red

Stock Availability: Out of stock

Advantay ERCE 100 Heating Vessel (Floor Standing)

AD0093000100

Advantay ER series 100 Litre Free Standing Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 775mm – Red

Stock Availability: Out of stock

Advantay ERCE 250 Heating Vessel (Floor Standing)

AD0093000250

Advantay ER series 250 Litre Free Standing Heating Expansion Vessel. 1” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 1160mm – Red

Stock Availability: Out of stock

Advantay ERCE 300 Heating Vessel (Floor Standing)

AD0093000300

Advantay ER series 300 Litre Free Standing Heating Expansion Vessel. 1” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 1240mm – Red

Stock Availability: In stock

Advantay D-11 Potable Vessel

AD0093100011

Advantay D series 11 Litre Potable Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 3 bar), Max Operating Temp 99°C, Height 300mm, Wall mounting (with suitable bracket) - White

Stock Availability: Out of stock

Advantay D-2 Potable Vessel

AD0093100002

Advantay D series 2 Litre Potable Heating Expansion Vessel. 1/2” Male Connection. Max Operating Pressure 8 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 230mm, Wall mounting (with suitable bracket) - White

Stock Availability: In stock

Advantay D-35 CE Potable Vessel

AD0093100035

Advantay D series 35 Litre Potable Heating Expansion Vessel. 1” Male Connection. Max Operating Pressure 10 bar (pre-set 3 bar), Max Operating Temp 99°C, Height 390mm, Wall mounting (with suitable bracket) - White

Stock Availability: Out of stock

Advantay D-5 Potable Vessel

AD0093100005

Advantay D series 5 Litre Potable Heating Expansion Vessel. 3/4” Male Connection. Max Operating Pressure 10 bar (pre-set 3 bar), Max Operating Temp 99°C, Height 225mm, Wall mounting (with suitable bracket) - White

Stock Availability: Out of stock

Advantay AFH-200 CE horz 10bar Expansion Vessel

AD0093500200

Advantay 200 Litre Horizontal Expansion Vessel complete with universal pump mounting bracket. 1.1/4” Male Connection. Max Operating Pressure 10 bar (pre-set 1.5 bar), Max Operating Temp 99°C, Height 665mm - Blue

Stock Availability: Out of stock

Heatrae Sadia Pack U2 Expansion Vessel,PRV & NRV

95970351

Heatrae Sadia Pack U2 Expansion Vessel, PRV & NRV

Stock Availability: In stock

Zip Expansion Vessel & Check Valve

ZPAQ2

Zip 2 Litre Expansion Vessel & Check Valve (3.5bar) Unvented Installation Kit – AQ2

Compatible with 5, 10 and 15L Zip Aquapoint and Varipoint water heaters

Stock Availability: In stock

Zip AQ1 Pressure & Temperature Relief Valve

Zip Pressure & Temperature Relief Valve

ZPAQ1

Zip Pressure and Temperature Relief Valve (7 bar) - AQ1

Compatible with 5, 10 and 15L Zip Aquapoint and Varipoint water heaters

Stock Availability: In stock

3/8" Flamco Flexvent

FLEX010

3/8" Flamco Float Operated Flexvent - Minimum/Maximum working pressure 0.2 / 10.0 bar -Brass

Stock Availability: In stock

1/2" Flamco Flexvent

FLEX015

1/2" Flamco Float Operated Flexvent - Minimum/Maximum working pressure 0.2 / 10.0 bar

Stock Availability: In stock

1/2" Flamco Flexvent Super

FLEXS015

1/2" Flamco Float Operated Conical Flexvent Super - Minimum/Maximum working pressure 0.2 / 10.0 bar

Stock Availability: In stock

1/2" Flamco Flexvent Top

FLEXT015

1/2" Flamco Float Operated Flexvent Top - Minimum/Maximum working pressure 0.2 / 10.0 bar

Stock Availability: Out of stock

1/2" CORE 508 Auto Air Vent c/w Check Valve (AAV)

AD0050800012

1/2" Automatic Air Release Valve with isolating check valve. Max pressure 10 bar, max temperature 110°c.

Stock Availability: In stock

3/8" Advantay Auto Air Vent

AD0050700038

3/8" Advantay Auto Air Vent. 110°c with max pressure of 10 bar as standard.

Stock Availability: Out of stock

1/2" Auto Air Vent ART1360

ALBAAV015

Automatic Air Vent. BSP Parallel Male Ends (ISO 228/1). Body Brass CW617N Nickel Plated. 10 Bar Rated. +5°C to +110°C.

Stock Availability: In stock

1/2" Automatic Air Vent for Water

AAV015

1/2" Automatic Air Vent for Water

Stock Availability: In stock

15nb Hattersley 775 Auto Air Vent

H775015

15mm Hattersley PN10 Automatic Air Vent Fig.775

Stock Availability: In stock

1/2" Spirotop A.A.V. Type "A"

SPIRO015

1/2" Spirotop Brass Automatic Air Vent AAV Type 'A'

Stock Availability: In stock

3/8" Zeparo ZUP Automatic Air Vent

TA7891510

3/8" Zeparo ZUP 10 Automatic Air Vent - 6 Bar, Male thread, Vertical installation.

Stock Availability: In stock

15nb Winns Type B Auto Air Vent

WINB

15nb Winns Brass Type B Automatic Air Vent Eliminator

Stock Availability: In stock

15nb Winns Type C Auto Air Vent

WINC

15nb Winns Brass Type C Automatic Air Vent Eliminator

Stock Availability: Out of stock

15nb Crane PN10 Brass Automatic Air Vent D2003

D2003015

15mm Crane PN10 Brass Automatic Air Vent D2003

Stock Availability: In stock

25nb Crane PN10 Brass Automatic Air Vent D2003

D2003025

25mm Crane PN10 Brass Automatic Air Vent D2003

Stock Availability: Out of stock

1-1/4" Advantay Pressure Reducing Valve Female Union

AD0901600114

1-1/4" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Stock Availability: Out of stock

1-1/2" Advantay Pressure Reducing Valve Female Union

AD0901600112

1-1/2" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Stock Availability: In stock

2" Advantay Pressure Reducing Valve Female Union

AD0901600200

2" Advantay Pressure Reducing Valve BSP, F/F union fittings. Adjustable between 0.5 to 6 bar. Pre set 3 bar maximum inlet pressure of 25 bar. Maximum water temperature of 80°c. Suitable for fluid, water and compressed air.

Stock Availability: In stock

1/2" Advantay Pressure Reducing Valve (no gauge)

AD0901110012

1/2" Advantay Compact Pressure Reducing Valve BSP, F/F. 1 to 4 bar, pre set at 3 bar adjustable pressure, max 15 bar. Max temp 80°c. (no gauge)

Stock Availability: In stock

3/4" Advantay Pressure Reducing Valve (no gauge)

AD0901110034

3/4" Advantay Compact Pressure Reducing Valve BSP, F/F. 1 to 4 bar, pre set at 3 bar adjustable pressure, max 15 bar. Max temp 80°c. (no gauge)

Stock Availability: In stock

22/15mm Advantay Compact Pressure Reducing Valve c/w Gauge

ADVRV01522

22/15mm Advantay Compact Pressure Reducing Valve with 50mm pressure gauge. 1 to 4 bar, pre set at 3 bar adjustable pressure, max 15 bar. Max temp 80°c.

Stock Availability: Out of stock

22mm Advantay Auto Bypass Valve (full bore)

ADV5510022

22mm Compression Automatic Full Bore Bypass Valve. Used in heating systems, reduces system noise and maintains boiler efficiency. Can be used as a system or boiler bypass. Adjustable from 0.1 to 0.6bar, manufactured from brass.

Stock Availability: In stock

3/4" Advantay Auto Bypass Valve (Full Bore)

AD0055400034

3/4” BSP M/F Automatic Full Bore Angled Bypass Valve. Used in heating systems, reduces system noise and maintains boiler efficiency. Can be used as a system or boiler bypass. Adjustable from 0.1 to 0.6bar, manufactured from brass.

Stock Availability: Out of stock

Heatrae Sadia Pack U1 Pressure Reducing Valve & Strainer

95970352

Heatrae Sadia Pack U1 Pressure Reducing Valve & Strainer

Stock Availability: In stock

Zip AQ3 Pressure Reducer & Line Strainer

Zip Pressure Reducer & Line Strainer

ZPAQ3

Zip Combined Pressure Reducer Valve and Line Strainer - AQ3

Stock Availability: In stock

Advantay Part L Compliant Filling Loop (Complete)

AD0090200500PC

Advantay 15mm Part L Compliant Standard Filling Loop. Complete with ball valve, flexible hose, double check valve with integral ball valve & end caps.

Stock Availability: In stock

Advantay Standard Combi Filling Loop c/w IV

AD0090200500

Advantay 15mm Standard Filling Loop. Complete with ball valve, flexible hose, double check valve .

Stock Availability: Out of stock

1/4" PT90 Test Point

TA52179-009

1/4" PT90 Brass Pressure Test Point BSP Thread

Stock Availability: In stock

110/82mm Airsure Air Admittance Valve

FRG110W

110/82mm Airsure Air Admittance Valve

Stock Availability: In stock

63mm Advantay Combi T/P Gauge 0-6B/0-120C 1/2"

AD91548600

63mm Advantay combined pressure & temperature gauge. 1/2" back 0-6 bar & 0-120°c.

Stock Availability: Out of stock

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Expansion Vessels & Ancillaries

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